New tagmoji on Micro.blog

The /posts/discover API for Micro.blog apps has also been updated. It now returns the emoji that Micro.blog is currently tracking, and whether it’s one that is “featured” in the default popup menu in Micro.blog on the web. Since many of the emoji are seasonal, like sports, we can rotate out the default list throughout the year. (The iOS and macOS apps will be updated later to more closely match the web version of Micro.blog’s topics popup menu.)